21883288

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:320

約数の個数: 64

約数和(自身を含む): 50054400

約数和(自身を除く): 28171112

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 131, 133, 152, 157, 262, 266, 314, 524, 532, 628, 917, 1048, 1064, 1099, 1256, 1834, 2198, 2489, 2983, 3668, 4396, 4978, 5966, 7336, 8792, 9956, 11932, 17423, 19912, 20567, 20881, 23864, 34846, 41134, 41762, 69692, 82268, 83524, 139384, 143969, 164536, 167048, 287938, 390773, 575876, 781546, 1151752, 1563092, 2735411, 3126184, 5470822, 10941644, 21883288]

約数ペア:

[(1, 21883288), (2, 10941644), (4, 5470822), (7, 3126184), (8, 2735411), (14, 1563092), (19, 1151752), (28, 781546), (38, 575876), (56, 390773), (76, 287938), (131, 167048), (133, 164536), (152, 143969), (157, 139384), (262, 83524), (266, 82268), (314, 69692), (524, 41762), (532, 41134), (628, 34846), (917, 23864), (1048, 20881), (1064, 20567), (1099, 19912), (1256, 17423), (1834, 11932), (2198, 9956), (2489, 8792), (2983, 7336), (3668, 5966), (4396, 4978)]